Historical shoreline position and geometry data for the entire Northern Ireland coastline, analyzed from Ordnance Survey maps and aerial imagery dating back to the early 1800s. The dataset was processed using the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics at 25-meter intervals. The end product was provided by Ulster University to visualize and assess historical shoreline change.
Use Cases
- Calculate rates of shoreline change based on Net Shoreline Movement (NSM) and End Point Rate (EPR) statistics.
- Identify areas of coastal retreat or accretion based on spatially displayed rate-of-change data.
- Model long-term coastal dynamics using Linear Regression Rate (LRR) and Weighted Linear Regression Rate (WLR) statistics.
- Visualize historical shoreline positions and change envelopes for coastal management planning.
Strengths
- Analysis is based on all available Ordnance Survey maps and aerial imagery, providing a long-term perspective.
- Rate-of-change statistics were calculated at a high spatial resolution of 25-meter intervals.
- Data processing utilized the established Digital Shoreline Analysis System (DSAS) software package.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and specific data volume are unknown, which may limit suitability assessment.
Provenance
- Source
- OpenDataNI, with analysis by Ulster University.
- Collection Method
- Historical analysis of Ordnance Survey maps and aerial imagery using the ArcGIS Digital Shoreline Analysis System (DSAS).
- Time Range
- Early 1800s to at least 2014.
- Freshness
- Last updated 2026-03-18 11:23:02.425539; freshness should be verified.
- Geography
- Northern Ireland coastline.